years of changing track with mitt romney is going to change it. so you have people, like me, like you, like just about everybody, caught in the middle. what is the right way to go. >> all right. miguel in denver, we'll continue to watch your travels. really great work this week, miguel. and also, ali velshi, in a few hours, we'll up up on "your money." nice to see you, ali. up next, china, a dominant topic at this week's presidential debate. we'll tell you whether china is more threat or opportunity. but first, there are more than 1.3 billion people in china. that makes up what percentage of the world's population? is it a, 9%, b, 19%, c, 29%, no googling. i'm going to tell you on the other side of the break. begin.